Oil cooling device



Sept. 13, 1932. ELFES 1,876,648

OIL COOLING DEVICE Filed Sept. 22, 1930 2 $heets$heet 1 //gr0//4 firm Mk ATTORN EY$ Sept. 13; 1932. H. L. ELFES on. COOLING DEVICE F iled Sept 22 19:50

2 Sheets-Sheet 2 ATTORN EY Patented Sept. 13, 1932 Es P HAROLD L. ELFES, OF DETROIT, MICHIGAN, ASSIGNOR TO MOTOR PRODUCTS CORPORA- TION, OF DETROIT, MICHIGAN, A CORPORATION OF NEW YORK OIL COOLING DEVICE Application filed September 22,1930 Serial No. 483,720.

This invention relates to an oil cooling device particularly designed for use in connection with the engines of motor vehicles and the like.. i

1 One of the important objects of this inventionis to provide an air cooled oil cooling device in which the flow of air is controlled. Another object of this invention is to provide controlling means for the cooling air actingiin dependence upon the temperature of the oil or the temperature of the water of the circulatory cooling system.

Still another oh'ect of this invention is to provide a cooling device of this nature which is compact and simple both in construction and operation and one which may be manufactured economically and easily installed.

The several objects, advantages and novel details of construction of the invention will be, made more apparent as this description proceeds, especially when considered in connection with the accompanying drawings, wherein i i 1 Figure 1 is a fragmentary perspective view of a portion of a motor vehicle with my improved oil cooling device associated therewith; i

Figure 2 is an enlarged semi-diagrammatic sectional elevation al view of a motor vehicle engine, radiator and shutter structure having associated therewith my improved oil cooling device Figure 3 is asectional view taken substantially on the plane indicated by line 33 in Figure 2; Figure lvis a fragmentary sectional view through the cooling device showing a modified form of construction; Figurefi is a fragmentary sectional view showing another modified form of construction including separate thermostatic means for controlling a separate set of shutters for the air inlet end of the device;

Figure 6 18 a semi-diagrammatic vertical sect onal elevatlonal View showing still another modified form of control mechanismwherein the shutters for controlling the air to the oil cooling device are operated from the ther mostat for controlling the radiator shutters but are moved difl'erentially' with respect thereto through the medium of suitably arranged levers, and

Figure 7 is a semi-diagrammatic plan view of the structure illustrated in Figure 6.

Referring now particularly to the drawings wherein like reference characters indicate like parts, it will be noted that there is fragmentarily illustrated an internal combustion engine or the a in any suitable manner as, for instance, by

bolts 16, q i

The coil cooling device consists essentially of an elongated rectangular receptacle 17 communicating by means of a plurality of conduits 18 with the bottom of a pan-like member 19 which is bolted to the bottom of the engine block and takes the place of the customary crank case. A lower wall of the sump-pan 19 forms a top wall of an air chamber or passageway 20 which surrounds the receptacle 17 the side and bottom walls of this air passageway or conduit being formed by means of a substantially U-shaped member 21. Both ends 22 of the elongated rectangular receptacle 17 are closed as illustrated clearly in Figure 2 and interiorly of the receptacle 17 there may be and preferably is provided one or more bafiie members 23 which act to eliminate to a great extent the splashing of the like 10 together with a conventional form of radiator 11, the latter formway2O is open so that air may pass into the inlet end 25 of the air conduit or passageway and flow rearwardly through the air passageway around the oil receptacle 17 and then pass out through the rear open end 26. I

This will effect a cooling of the oil as will be apparent, it being understood that the oil collects in the sump-pan l9 and flows through conduits 18 into the receptacle 19 where it is taken by a pump (not shown) and again forced through the oil circulating system.

While the system will operatewithout ansirable in some instances to provide a control for the air passing through theair conduit 20. This is particularly effective in cold weather when it is desired to promptly raise the temperature of the oil to the point where it will flow properly through-the circulating system. One form of construction for accomplishing this object is shownin Figures 1 and 2 wherein the shutters 12 for the Water radiator 11 are shown as extended below the bottom of this radiator asindicatedat 27. Thus the extending portions 27 of the shutters 12 are disposed in front of the open end 25 of the air conduit for the'oil cooler so that when the engine is cold and as aconsequence the oil is cold, the shutters 27, which are operated in dependence upon the temperature of ti ns 27 wil al e m ve to: en sition O 1 so b 0 d Op 7 means lncluding a receptacle for the engine the water in the circulatory system, will remain closed. When, however, the'temperature has risen sufiiciently to cause the thermo statlS to open the shutters 12, the shutter porto permit the free passage of cool air into the conduit 24 to flow through the air passageway 20.

In Figure 4 a slightly modified-form of construction is illustrated. construction the conduit 24 is eliminated and shutters 28 are arranged adjacent the inlet end 29 of theair conduit 20. The reference character 30 indicates a thermostat arranged in the receptacle 17, this thermostat being 7 connectedby means of a link 31 to the shutters 28 so as to open and close upon the samein dependence upon the temperature of the oil.i self; V

' In Figure 5 still another modification is il lustrated in which a thermostat 32 is located,

for instance, in association with the bottom of the radiator 11, this thermostat being connected by means of suitable linkage 33 with separate shutters 34 inlet end 25 of the shutters 34:

arranged to control the air conduit 24:. Thus the dependently of the shutters 12 to control the air employed for cooling theoil. 7' I In Figures 6 and 7 still another modified form of construction is illustrated. In this form of construction itis proposed to utilize y the shutters 1 34 control for the cooling a1r,I have found it debe such thatthe shutters 34:

In this form of flow of air through said would be opened and closed inthe conventional thermostat 13 Which ordinarily controls the shutters 12 but to provide a separate set of shutters 34 for controlling the air inlet 25' and to actuate this set of shutters 3 1-, through the medium of suitable levers, so that they will be difier entially opened and closed with respect to the Y the shutters 12 is connected. Thus the same thermostat 1 3, whose action is imparted to by means of link 37, will, uponbeing actuated differentially move the shutters 34; with respect to the shutters'l2 and obviously the relation of the linkage may will open to a greater or lesser extent orprior to or subsethe shutters 34: will be quent to the shutters 12 as found desirable or expedient.

Various modifications will suggest themselvestothose skilled in this art and to this end reservation is made to make such-changes as may come within the purview of the ac coinpanying claims.

, VVhat I claim as my inventionis:

1. An oil cooling attachment for engines comprising means constituting a closure for the lower side of the engine crankcase, said means including a receptacle for the engine lubricant and means providing an air circulatory passage surrounding said receptacle.

. 2. An oil cooling attachment for'engines comprising means constituting a closure for the lower side of the engine crank case, said 'tory passage surrounding said receptacle,

and means for automatically regulating the passage.

4. An oil cooling attachment for engines comprising means constituting a closure for the lower side of the engine crank case, said means including a receptacle for the engine lubricant, means providing an air circulatory passage surrounding said receptacle, and

shutter means for regulating the flow of air through said passage.

5. The combination with an engine, of oil 1 cooling means including a pan-like closure for the lower side ofthe' engine crank case, a receptacle for the engine lubricant arranged therebeneath and communicating therewith, and means cooperating with said receptacle to provide a surrounding air passageway of the engine crank case,

through which air may be circulated in contact with said receptacle.

6. An oil cooling unitary attachment for engines including a closure for the lower side an oil receptacle spaced below said closure and communicating through said closure with the interior of thereto to provide a circulatory air passageway open at opposite ends through which air the crank case,

member secured to said closure and extendmay be circulated in contact with said re ceptacle.

7 An oil cooling unitary attachment for engines including a closure for the lower side ofthe engine crank case, an oil receptacle spaced below said closure and communicating through said closure w1th the interior of and a substantially U-shaped ing around said receptacle in spaced relation theretoto provide a circulatory air passageway open at opposite ends through which air may be circulated in contact with said receptacle, and means for controlling the passage of air through said passage.

8. An oil cooling unitary attachment for engines including a closure for the lower side of the engine crank case, an oil recepwtacle spaced below said closure and communicating through said closure closure with the municating through said and a substantialinte rior of the crank case,

ly U-shaped member secured to said closure and extending around said receptacle 1n spaced relation thereto to provide a circulatory a1r passageway open at opposite ends through which a1r may be circulated in contact with said receptacle, and temperature controlled shutters for controlling the flow of air through said passage.

9. An oil cooling unitary attachment for engines including a closure for the lower side of the engine crank case, an oil receptaclespaced below said closure and comwith the a interior of the crank case, and a substantial- 1y U-shaped member secured to said closure and extending around .said receptacle inspaced relation thereto to provide a circulatory air passageway open at opposite ends through which air may be circulated in contactwith said receptacle, and thermostatical- 1y controlled shutters for regulating the flow of air through said passageway.

10. The combination with an engine and a cooling radiator therefor, of oil cooling means associated with the bottom of the engine crank case, said means including an oil means providing a surrounding air passageway, and means for conducting air from a point adjacent. said radiator to said air passageway.

11. The combination with an engine, a

rounding air passageway, means for conducting air from a point adjacent said radiator to said air passageway, and means for con trolling said air.

13. The combination with an engine, a water circulatory and cooling system therefor, and thermoresponsive means for controlling the cooling of the water in said system, of oil cooling means including an oil receptacle, and means responsive to the actuation of said thermoresponsive means for controlling the flow of cooling air in contact with said receptacle.

let. The combination with an engine, of oil cooling means including a receptacle, means providing an air circulatory passage in conjunction with said receptacle, and means responsive to the temperature of the oil in said receptacle for controlling the flow of air through said passage.

15. The combination with an engine, a water circulatory and cooling system for said engine, and shutters for controlling the cooling of the water in said system, of an oil receptacle, means providing an air circulatory passageway in conjunction with said receptacle, shutters for controlling the flow of air through said passageway, a thermoresponsive member, and diiferential connections between said thermoresponsive member and the shutters controlling the cooling of the water in the said water circulatory system, and the shutters controlling the flow of air through said air circulatory passage for differentially actuating said shutters upon actuation of said thermore' sponsive member.

In testimony whereof I aiiix my signature.

HAROLD L. ELFES. 

